2. Memory disorder​Memory can be defined as an organism's ability to encode, retain, and recall information. Disorders of memory can range from mild to severe, yet are all a result of damage to neuroanatomical structures; either in part or in full. This damage hinders the storage, retention and recollection of memories. Memory disorders can be progressive, including Alzheimer's disease, or they can be immediate including disorders resulting from head injury.Read “Memory disorder” on English WikipediaRead “記憶障害” on Japanese WikipediaRead “Memory disorder” on DBpedia